FR2191188A1 - - Google Patents

Info

Publication number
FR2191188A1
FR2191188A1 FR7321777A FR7321777A FR2191188A1 FR 2191188 A1 FR2191188 A1 FR 2191188A1 FR 7321777 A FR7321777 A FR 7321777A FR 7321777 A FR7321777 A FR 7321777A FR 2191188 A1 FR2191188 A1 FR 2191188A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7321777A
Other languages
French (fr)
Other versions
FR2191188B1 (enrdf_load_stackoverflow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2191188A1 publication Critical patent/FR2191188A1/fr
Application granted granted Critical
Publication of FR2191188B1 publication Critical patent/FR2191188B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR7321777A 1972-06-28 1973-06-06 Expired FR2191188B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26694772A 1972-06-28 1972-06-28

Publications (2)

Publication Number Publication Date
FR2191188A1 true FR2191188A1 (enrdf_load_stackoverflow) 1974-02-01
FR2191188B1 FR2191188B1 (enrdf_load_stackoverflow) 1976-09-17

Family

ID=23016637

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321777A Expired FR2191188B1 (enrdf_load_stackoverflow) 1972-06-28 1973-06-06

Country Status (7)

Country Link
US (1) US3769469A (enrdf_load_stackoverflow)
JP (1) JPS5220255B2 (enrdf_load_stackoverflow)
CA (1) CA998470A (enrdf_load_stackoverflow)
DE (1) DE2329693A1 (enrdf_load_stackoverflow)
FR (1) FR2191188B1 (enrdf_load_stackoverflow)
GB (1) GB1402681A (enrdf_load_stackoverflow)
IT (1) IT982621B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5788509A (en) * 1980-11-20 1982-06-02 Ibm Protective device for data of magnetic recording device
US4819092A (en) * 1987-05-08 1989-04-04 Colorado Memory Systems, Inc. Apparatus for writing signal density information on a magnetic medium
AU6626294A (en) * 1993-04-09 1994-11-08 Washington University Magnetic recording head with continuously monitored track following servo
US6564307B1 (en) 1999-08-18 2003-05-13 International Business Machines Corporation Method, system, and program for logically erasing data

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832036A (en) * 1958-01-15 1960-04-06 Gerhard Dirks Improvements in or relating to magnetic recording and reading apparatus
CH465012A (fr) * 1966-07-13 1968-11-15 Ncr Co Tête transductrice magnétique composite

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155949A (en) * 1961-11-24 1964-11-03 Ibm Tunnel erase magnetic transducer
NL156528B (nl) * 1966-09-15 1978-04-17 Philips Nv Magnetische schrijf-lees-wiskop.
US3684841A (en) * 1969-12-30 1972-08-15 Honeywell Inc Multi-channel magnetic transducer structure having full width erase head in non-magnetic housing
US3668332A (en) * 1970-08-26 1972-06-06 Xerox Corp Magnetic recording heat which accurately defines the width of the recording track

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832036A (en) * 1958-01-15 1960-04-06 Gerhard Dirks Improvements in or relating to magnetic recording and reading apparatus
CH465012A (fr) * 1966-07-13 1968-11-15 Ncr Co Tête transductrice magnétique composite

Also Published As

Publication number Publication date
FR2191188B1 (enrdf_load_stackoverflow) 1976-09-17
DE2329693A1 (de) 1974-01-17
JPS4958816A (enrdf_load_stackoverflow) 1974-06-07
GB1402681A (en) 1975-08-13
IT982621B (it) 1974-10-21
JPS5220255B2 (enrdf_load_stackoverflow) 1977-06-02
CA998470A (en) 1976-10-12
US3769469A (en) 1973-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse